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Posted to commits@cassandra.apache.org by "Andrew Jorgensen (JIRA)" <ji...@apache.org> on 2017/09/05 13:43:00 UTC

[jira] [Created] (CASSANDRA-13843) Debian init shadows CASSANDRA_HEAPDUMP_DIR

Andrew Jorgensen created CASSANDRA-13843:
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             Summary: Debian init shadows CASSANDRA_HEAPDUMP_DIR
                 Key: CASSANDRA-13843
                 URL: https://issues.apache.org/jira/browse/CASSANDRA-13843
             Project: Cassandra
          Issue Type: Bug
          Components: Observability
            Reporter: Andrew Jorgensen
            Priority: Minor


The debian init script sets the heap dump file directly using the cassandra users home directory and the -H flag to the cassandra process[1 title|https://github.com/apache/cassandra/blob/8b3a60b9a7dbefeecc06bace617279612ec7092d/debian/init#L76]. The cassandra heap dump location can also be set in the cassandra-env.sh file using CASSANDRA_HEAPDUMP_DIR. Unfortunately the debian init heap dump location is based off the home directory of the cassandra user and cannot easily be changed. Also unfortunately if you do `ps aux | grep casandra` you can clearly see that the -H flag takes precedent over the value found in cassandra-env.sh. This makes it difficult to change the heap dump location for cassandra and is non-intuitive when the value is set in cassandra-env.sh why the heap dump does not actually end up in the correct place.



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